Sand-handling apparatus.



PATENTED PEB. 21, 1.905.

W. J. PATTERSON.

SAND HANDLING APPARATUS.

APPLIoATIoN FILED 11113.26, 1904.

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IlNirnn STATES I/VILLIAM J.

Patented February 21, 1905,

Arnim Orifice,

PATTERSON, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO RATION OFPENNSYLVANIA.

SAND-HANDLING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 783,129, datedhFebruary21, 1905.

' Appiicatau nea Marcil 2G, 1004.. serai No. 200,208.

Be it known that I, VILLIAM J. PATTERSON, a resident of Pittsburg', inthe county of Allegheny and State of Pennsylvania, have invented a newand useful Improvement in Sand- Handling Apparatus; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof.

My invention relates to adevice for handling IO sand or like material,its object being to provide a device by means of which sand in a foundrymay be expeditiously handled so as to avoid the necessity of manuallabor and provide sand in proper quantities for a con- I5tinuous-molding process.

To these ends my invention comprises, generally stated, an overheadframe and carriage mounted on said frame and adapted to travellongitudinally thereof, an elevator carried by 2O said carriage anddepending' therefrom, and a mechanism for turning said elevator,-whereby the sand lifted by said'elevator may be discharged into a screen orother receptacle at one end of said structure and may be after- 2 5 wardturned so as to discharge the sand into a like screen or receptacle atthe other end of said structure.

To enable others skilled in the art to make and use my invention, I willdescribe the same more fully, referring to the accompanying drawings, inwhich Figure 1 is a side elevation of my improved sand-handling device.Fig. 2 is a plan View thereof. 3 5 Like numerals indicate like parts ineach of the figures.

In the drawings the numeral 2 designates a suitable framework orbuilding inclosing a foundry castingroom, and secured to said frame arethe brackets 3, which support the tracks 5, extending longitudinally ofthe frame or structure 2. Mounted upon the tracks 5 is the travelingcrane or bridge 7, which is adapted to travel along the tracks 5, saidcrane being provided with the wheels 6. Mounted on the crane 7 is themotor 8, said motor having the shaft 9, with the pinion 10 thereon,which meshes with the gear-wheel 11 on the shaft 12. This shaft 12extends to the opposite ends of the crane, and mountedv on the end ofsaid shaft is the sprocket-wheel 13, which is connected, by means of achain 14, with the sprocket-Wheel 15, mounted on the shaft 16 of therotary screen 17. Thile I have only specitical ly described one screenand the mechanism for operating same, a similar screen 17 is employed atthe opposite end of the bridge, together with similar mechanism fordriving the same. As these screens andthe mechanism for driving the samedo not form any partofmyinvention,ithasnotbeendeemed necessary toillustrate or describe the same other than in the general manner setforth.' Furthermore, the screen may be dispensed with and a chute orother receptacle employed for discharging the sand in proper positionbelow on the foundry-iioor for reuse in molding.

In order to provide for the traveling of the crane 7 along the tracks 5,the gear-wheel 18 on the shaft 12 meshes with gear-wheel 19 70 on theshaft 20. The shaft 2O carries at its ends the wheels 6 of the crane,and when said shaft 2O is driven said crane is caused to move along thetracks 5 for any desired distance. Suitable clutch mechanism may beemployed for throwing the shaft 2O into and out of engagement with theoperating mechanism; but as this forms no part of my invention ithas notbeen Vdeemed necessary to illustrate the same. 8O

Mounted upon the crane 7 and extending between the screens 17 are thetracks 22, the ends of said tracks being slightly upturned. Upon thetracks 22 is mounted the carriage 23, which has the wheels 24 engagingthe rails f of said track. The shaft 25 is mounted in suitable bearingsin the carriage 23, said shaft having on its outer end thesprocket-wheel 26, with Vwhich the chain 27 engages. A pinion 28 on theshaft 25 meshes with the gear- 90 wheel 29 upon the shaft 30, said shaft30 forming one of the axles of the carriage, and upon which are mountedthe wheels 24. It is apparent that by pulling the chain 27 in onedirection or the other the carriage 23 will be caused to travel alongthe tracks 22.

Mounted upon the carriage 23 is the turntable 31, said turn-table havingthe flange 32, which rests upon the rollers 33. These rollers aremounted'on the shafts 34, which are journaled in brackets 35 on saidcarriage. Upon the upper face of the fiange 32 of the'turntable is thecircular rack-face 36, with which the pinion 37 engages. This pinion 37is mounted on the shaft 38, which is journaled in suitable bearings inthe carriage 23, and on the outer end of said shaft 38 is thesprocketwheel 39. A chain 40a also engages the sprocket-wheel 39, sothat by pulling on said chain the pinion 37 is rotated and a rotarymovement is imparted to the turn-table.

Mounted upon the turn-table is the motor 40, whose shaft 41 carries theworm 42, which engages the worm-wheel 43 on the shaft 44,`

said worm-wheel being covered by the hood 45. A sprocket-wheel 46 on theshaft 44 is connected by the chain 47 with the sprocketwheel 48 upon theshaft 49. This shaft 49 is the operating-shaft of the elevator 50, andsaid'shaft carries thesprocket-wheel 51 around which the chain 52passes, said chain 52 being providedA with the buckets 53 for liftingthe sand. At the lower end of the elevator 50 is the receptacle 54, andjournaled in said receptacle is the lower sprocket-wheel 55 of theelevator.

Arranged at suitable intervals along' the `foundry-floor are the frames56, provided with the hoppers 57, adapted to receive the sand from thescreens, said hoppers being provided with the gates 58 at the lower endthereof, which are controlled by a lever 59, whereby the sand may bedischarged from said hopper in the amount desired, it being' usual to'have the molding-machine beneath said hoppers.

Secured to the screen-frame is the stationary chute 60, which is adaptedto coincide with the chute 61 of the elevator 50.

When my improved sand-handling device is in use and where the screen onthe left-hand side of the drawings is the one in use, the carriage 23will be over at the left-hand side of the track 22 in the positionindicated in Figs. 1 and 2. The sand is shoveled into the receptacle 54at the bottom of the elevator 50, and the motor 40 being Vput intooperation the sand is lifted and discharged by the chute 61 into thechute 60, whence it passes into the screen 17. This is continued untilit is desired to operate the screen 17 at the other side of the frame,whereupon by drawing on the chain 27 the carriage 23 is moved to theother side ofthe frame across the track 22.

the chute 60. The elevator is then put into operation and the sandlifted and discharged in the same manner as before described vinto thescreen at the right-hand end of the frame. In this manner one elevatormay be employed for raising the sand from either side .of thefoundry-hoor, and the necessity of employing twoelevators or some formof conveying apparatus for carrying the lifted sand from the elevatorIto the opposite screen is avoided.

What I claim isl 1. In a sand-handling device for foundry purposes, thecombination with a series of sand-receiving devices arranged insubstantially parallel rows upon the foundry-Hoor with an interveningspace between said rows, of an overhead traveling bridge, a carriage onsaid bridge adapted to `'travel transversely thereof, an ,elevator onsaid carriage extending down into said space, and means for turning saidelevator to discharge the sand into either row of sand-receivingdevices.

2. In a sand-handling device for foundry purposes, the combination witha series of sand-receiving devices arranged in substantially parallelrows upon the foundry-floor with an intervening space between said rows,

of an overhead traveling bridge, acarriage on said bridge adapted totravel transversely thereof, mechanism for driving said carriage, anelevator on said carriage extending down into said space, and means forturning said elevator to discharge the sand lifted thereby into thesand-,receiving devicesof either row.

3. In a sand-handling device for foundry purposes, the combination witha series of sand-receiving devices arranged in substantially parallelrows upon the foundry-floor with an intervening space between said rows,of an overhead traveling bridge, a carriage on said bridge adapted totravel transversely thereof, a turn-table on said carriage, an elevatorcarried by said turn-table and extending down into said space, means forturning said turn-table to discharge the sand raised by said elevatorinto either row of said sandreceiving devices.

In testimony whereof I, the said WILLIAM J. PATTERSON, have hereunto setmy hand.

f v WILLIAM J. PATTERSON.

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